<template>
  <nav-bar class="nav-bar">
    <template #left>
      <img
        src="../../../assets/img/common/back.svg"
        alt=""
        @click="backClick"
        class="back"
      />
    </template>
    <template #center>
      <span
        v-for="(item, index) in titles"
        :key="index"
        @click="itemClick(index)"
        :class="{ active: index === currentIndex }"
      >
        {{ item }}
      </span>
    </template>
  </nav-bar>
</template>

<script>
import NavBar from "components/common/navbar/NavBar";
export default {
  name: "DetailNavBar",
  data() {
    return {
      currentIndex: 0,
      titles: ["商品", "参数", "评论", "推荐"],
    };
  },
  components: {
    NavBar,
  },
  methods: {
    itemClick(index) {
      // console.log(index);
      this.currentIndex = index;
      this.$emit("tabClick", index);
    },
    backClick() {
      this.$router.back();
    },
  },
};
</script>

<style scoped>
.nav-bar {
  font-size: 13px;
}
.nav-bar span {
  padding: 0 10px;
}
.active {
  color: var(--color-high-text);
}

.back {
  margin-top: 10px;
}
</style>